Thank You for this project and sources.
I'm trying to learn ExtJS for couple of days, but without basics it is hard. Thanks to Your code I can start coding using Your solution as template-moving all models to one folder, creating file structure, taking all the good stuff from it.
It is well done, well commented and this should be app #!!
I don't know why sencha isn't showing this in examples and in showcase.
I don't know why they aren't showing this in the showcase; probably they want to sell training and support (no offense - it's their right to do so).